<|begin_of_text|><|start_header_id|>system<|end_header_id|>Summarize the contributions of activity, energy intensity, and structural changes to emissions.<|eot_id|><|start_header_id|>user<|end_header_id|>Sector: Residential; Activity change: -18%; Energy intensity change: 15%; Structural change: 0%.<|eot_id|><|start_header_id|>assistant<|end_header_id|>In the Residential sector, activity contributed -18%, energy intensity contributed 15%, and structural change contributed 0% to the total emissions change.<|eot_id|>